[  507.321627] bond0: (slave eth0): making interface the new active one
[  507.321695] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.521006] bond0: (slave eth0): Releasing backup interface
[  511.599774] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.749481] bond0: (slave eth0): Releasing backup interface
[  515.789428] bond0 (unregistering): Released all slaves